I did some accuracy testing on Sunday. Vector UZI full auto with Aimpoint H1 on stormwerkz mount.
Shot in semi-auto mode at 25 yards.
Just informal, but used a front rest and rear sandbag.
I shot some 125 grain conical lead handloads w/ a max charge of unique powder.
some 124 gr Federal fmj
some 147 gr. speer fmj flat nose. (why the AF do they make flat nose fmj ammo?)
There was plenty of operator error. It was hard to keep myself from pulling the trigger too hard, because I always go full-on-full-off when I shoot full auto.
I got decent groups in the 4 to 6 inch range. The gun will doubtlessly shoot better than that.
The hand loads shot best, the 147s were also good. The 124 grain Federal ammo was not accurate in my gun.
It occurred to me that I should find an accurate ammo and stick with it. The point of aim changed an amazing amount.
My gun will absolutely not shoot CCI aluminum case ammo. Jams constantly.